Astra
Alpha acid
7–10%
Beta acid
4–6%
Total oil
1–3 mL
Australia
Ahtanum
Alpha acid
3.5–6.5%
Beta acid
4–6.5%
Total oil
0.5–1.7 mL
United States
Key differences
When to pick Astra
- Higher alpha acid - stronger bittering
- More essential oils - more intense aroma
- Versatile - works for both bittering and aroma
When to pick Ahtanum
- Aroma-focused - ideal for dry hopping
Aroma profile and use
Shared aromas
Grapefruit
Only in Astra
TropicalSweetPeachWhiteMelonGrassyHoney
Only in Ahtanum
CitrusGeraniumPineEarthyFloralCedarLemon
Property
| Property | Astra | Ahtanum |
|---|---|---|
| Alpha acid | 7–10% | 3.5–6.5% |
| Beta acid | 4–6% | 4–6.5% |
| Co-humulone | 26–28% | 30–35% |
| Total oil | 1–3 mL | 0.5–1.7 mL |
| Myrcene | - | 45–55% |
| Humulene | 6–8% | 15–22% |
| Caryophyllene | 2–3% | 9–12% |
| Farnesene | - | 0–1% |
| Origin | Australia | United States |
| Purpose | Dual purpose | Aroma |